[Hulka]

“Heavy jets don’t have skid capable tail sections”

Not exactly.

During flight test the tail is purposely “scraped” on take off and landing, multiple times.

Part of its certification process.

[blackdog]

Never saw a taildragger heavy jet. I know high wing transports can skid the butt, but you've gotta have a very high nose up attitude / (stall) in a landing configuration to skid a tail section. I have seen tail scrapes on takeoffs, but not landings.

Interesting. Maybe that's what's accounting for the described wing drop. A stall.